Gabbiel mabtiktez



G. MARTINEZ.

CALCULATING MACHINE. APPLICATION FILED JUNEZQ m4.

Patented Aug. 15, 1916.

.rranlnlumr hnuz GABRIEL MARTINEZ, OF NEW YORK, N. Y.

CALCULATING-MACHINE.

Specification of Letters Patent.

Patented Au 15, 1916.

Application filed June 23, 1914. Serial No. 846,733.

To all whom it may concern:

Be it known that I, GABRIEL MARTINEZ, a citizen of the Republic of Mexico, residing in the borough oi Manhattan, in the city 01 New York, county and State of New York, have invented certain new and useful Improvements in Calculating-Machines, of which the following is a specification.

The object-of this invention is to provide an inexpensive portable calculating-machine. For this purpose a number of cupshaped dial members are arranged in series and over the same are mounted rotatable counter-plates, each provided with spaces for exposing one of the rows of figures on the dial member beneath it, and with a recess for exposing one figure of a second row of figures, nine of which remain concealed at any time by the counter-plate. The fixed dials are disposed side by side in the same horizontal plane and have their faces individually inclined to said plane and the rotary counter-plates are disposed side by side in individually inclined positions on said inclined dials. These inclined counter-plates are so disposed relatively that the high part of the one plate is adjacent to the low part of the next. Each counter-plate is provided on its face with a series of upright posts near its periphery and with an elevated outwardly projecting fin er; The inclined positions of the counter-plates permits the elevated outwardly extending finger of one plate to pass over and escape engagement with the posts of the adjacent counter-plate of the next lower order of numerals and causes such finger to engage a post of the adjacent counter-plate of the next higher order. g

In the accompanying drawing, Figure 1 is a plan of a calculating-machine embodyingthc invention, Fig. 2 is a front-view, the cover being laid fiat, Fig. 3 is a transverse section on line of Fig. 1, and Figs. a and 5 are detail views of two of the cupshaped dial members.

Similar reference cha 'acters indicate the same parts throughout the views.

The base 10 and its cover 11 may be of any suitable material such as Wood. On the base are arranged consecutively a plurality of cup-shaped dial members 21, 22, 23, 24:, 25, 26 respectively. These members are located close together and, instead of being of uniform height over their entire circumference, are, on the contrary, inclined at their upper edge, that is to say, the advancmg s de of each cup-shaped dial member, that 1s to say, the side toward and nearest the next cup-shaped member, is depressed.

This is clearly shown in Fig. 2. Counterwheels 31, 32, 33, 34:, 35, 36 are mounted, each respectively upon a standard or stud 12 risingfrom the base through the center of each dial member. Said counter-plates are supported by said posts 12 and are provided with radial arms 14, which rest on the upper edges 15 of the dial members. The body of each counter-plate is of sufiicient area to hide from view the inner row 16 of figures of the dial member, while the radial arms form between themselves segmental spaces outside of thebody of the plate, in which are exposed the figures of the outer row oi: figures 17 of the dial member.

Each of the arms 1 1 carries at its outer end an upwardly-projecting post 18, and one of said posts carries a radially-projecting finger 19, which finger projects far enough to engage once in each revolution of the counter-plate with one of the posts of the next counter-plate of the series, and thereby turn the second counter-plate a distance of one space or figure on the dial member. The inclined position of the counter-plates permits the laterally extend ed finger of one plate to escape the posts of the adjacent plate of the next lower order 01'' numerals. An abutment 27 is arranged in front of each counter-plate and extends over the same above the path of the posts 18.

For using the device, an operating-pin 20 is taken by the operator, who inserts it in that space between the arms of the counter plate corresponding to the number of units,

' etc., which he wishes to add. If he inserts the same, for instance, in the space in which appears the figure 3 in the dial member 21 and now moves the pin 20 while still engaged with the counter-plate, downward until the pin strikes the abutment 27, he will have brought opposite the figure 3 of the inner series of figures 16, a recess 28 in the body of the counter-plate 31, thereby exposing the figure 3 of said inner series in said recess, and indicating thereby that the machine has been operated to that extent. If the same operation be again carried out, "ecess 28 will be brought around so as to expose the figure 6 of the inner series 16 of figures of the dial member. In case now five more units be added, which is accomplished in the same manner, namely, by placing the pin 20 in the segmental space in which appears the figure 5 and bringing the pin around into engagement with the abutment 27, by such action the counter-plate will have been moved beyond the tens point, and the result will be that in passing the tens point the finger 19 of the counter-plate 31 will have engaged one of the posts 18 of the second counter-plate and moved the same a distance of one space over the second dial member. The same operation may be carried out with any of the dials. The dials indicate consecutively units, tens, hundreds, thousands, tens of thousands, and hundreds of thousands. hen the finger 1 of the second dial is at that side of its rotation adjacent the first counter-plate, the finger 19 does not engage any of the posts of said first counter-plate on account. of the inclination of the dial members, whereby the finger 19 is raised above the level of the posts, or, rather, the posts at that side of the dial member are depressed below the path of the finger 19. The same applies to all the dials except the first. but for the sake of uniformity in construction, this dial member is also inclined. The linger 1 is omitted from the last counterplate as there are no further counter-plates to be engaged. A springclip 37 and a stud 68 hold the manipulating-pin it) in place on the base when the same is not required for use.

The sum total of the operations on the machine is always to be read from the figures found exposed in the recesses 28 of the successive counter-plates from left to right.

The machine described provides a comparatively inexpensive yet reliable portable calculating-machine suitable for the use of all whohave to do considerable amounts of figuring. It is convenient in operation, does not easily get out of order, and can be readily repaired.

One embodiment of the invention hasbeen described, but changes may be made therein without departing from the spirit of the invention as set forth in the following claims.

I claim:

1. In a calculating machine comprising fixed dials disposed side by side in the same horizontal plane, the faces of said dials bc ing individually inclined to said plane and the high part of one being adjacent to the low part of the next, rotary counter-plates severally disposed side by side on said individually inclined dials, said counter-plates being severally provided with a series of upright posts one of which has an, elevated outward finger, the relative inclined positions of said counter-plates permitting such elevated finger of one counter-plate to pass over the top of and escape contact with the posts of the adjacent counter-plate of the next lower order and causing such linger to engage a post of the adjacent counterplate of the next higher order, and stops for said counter-plates.

2. A calculating machine comprising a series of iotary disks severally disposed side by side in individual inclined planes, the high part of one being adjacent to the low part of the next, said disks being provided near their peripheries each with a series of upright posts and with an elevated outwardly extended finger, the relative inclined positions of said rotary disks permitting such elevated outwardly extending finger to pass over and escape the posts of the adjacent rotary disk of the next lower order and to engage successively the several posts of the adjacent disk of the next higher order, and stops for said disks.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

GABRIEL MARTINEZ.

Vitnesses F. I-Ioee, Jos. BISBAND.

Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington, D. G. 

